Why is this good If you connect an antenna on this device, you will have a huge benefit, as it will increase your reach, straight from 90 meters to 240 meters away. It means the delay time is equal to 30 seconds plus time_delay, which is set on the sensor's setting (via Time Delay Adjuster). Step 1: Physical Characteristics of the Board I really like that this Arduino has a Pigtail connector for an antenna. Suppose that the repeatable trigger mode is set. * * Created by * * This example code is in the public domain * * Tutorial page: */ const int PIN_TO_SENSOR = 2 // the pin that OUTPUT pin of sensor is connected to int pinStateCurrent = LOW // current state of pin int pinStatePrevious = LOW // previous state of pin void setup() When an Arduino's pin is configured as a digital input, It can read the state ( LOW or HIGH) of anything it connected to.Ä«y connecting the Arduino's pin with the OUTPUT pin of the HC-SR501 sensor, we can use the Arduino code to check the value of the OUTPUT pin to detect the motion. Therefore, The sensor's widely used to detect the human in many application. However, this issue is NOT serious and the sensor is cheap. i set up the board as the picture bellow and my program is as follows include define DEBUG true SoftwareSerial esp8266 (18,19) // make RX Arduino line is pin 2, make TX Arduino line is pin 3.To turn on the light, someone needs to move. 1 im trying to connect wifi module to my MEGA 2560 board. During the meeting time, if everybody sits still without moving, motion is NOT detected â human is NOT present â light is turned off automatically. The Arduino (or MCU) deduces that human is NOT present.įor example, your meeting room uses the motion sensor to automatically turn on/off light, the light is turned on automatically when people move into the room. This rule is incorrect in a practical case: the humans are present in sensor range but NOT moving. If motion is NOT detected, the humans are NOT present
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